| 摘要 |
An internal combustion engine installation with a carburetor of any of various conventional carburetor types having at least one main jet, optionally a slow running jet, as well as a throttle member controlled by an accelerator lever or pedal wherein are provided valve means for interrupting the fuel supply by blocking the one or several carburetor jets in response to a predetermined rotational speed of the engine or a predetermined degree of vacuum in the intake manifold, and optionally a return or release movement of the accelerator lever or pedal to prevent unnecessary fuel consumption and to reduce the amount of pollutants in the exhaust gases.
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